In the diagram known as the homunculus, the hands are drawn to indicate that a large proportion of both the primary motor area and primary somatosensory area is devoted to them.

Question

Quizplus · Accepted Answer

The homunculus diagram represents the sensory and motor cortices of the brain, where body parts are drawn in proportion to the amount of cortex dedicated to them. The hands are large because they require fine motor skills and have a high density of sensory receptors.

In the Diagram Known as the Homunculus, the Hands Are